upop bulb controller - requires gattlib - wont work on python 3 because strings are too different :(

upop.py

#!./venv2/bin/python

from gattlib import GATTRequester

class bulb:
    _red = 255
    _green = 255
    _blue = 255

    def __init__(self, address):
        self._address = address
        self._connect()

    def _connect(self):
        self.req = GATTRequester(self._address)

    def _write(self, r, g, b):
        try:
            self.req.write_by_handle(0x2d, str(bytearray([b, g, r, 0x0])))
        except RuntimeError:
            self._connect()

    def on(self):
        self._write(self._red, self._green, self._blue)

    def off(self):
        self._write(0, 0, 0)

    def rgb(self, red, green, blue):
        self._red = red
        self._green = green
        self._blue = blue
        self.on()

    def hsv(self, h, s, v):
        if s == 0.0: v*=255; self.rgb(v, v, v)
        i = int(h*6.) # XXX assume int() truncates!
        f = (h*6.)-i; p,q,t = int(255*(v*(1.-s))), int(255*(v*(1.-s*f))), int(255*(v*(1.-s*(1.-f)))); v*=255; i%=6
        if i == 0: self.rgb(v, t, p)
        if i == 1: self.rgb(q, v, p)
        if i == 2: self.rgb(p, v, t)
        if i == 3: self.rgb(p, q, v)
        if i == 4: self.rgb(t, p, v)
        if i == 5: self.rgb(v, p, q)

if __name__ == "__main__":
    upright = bulb('E0:E5:CF:95:B4:8C')
    for h in range(0,359):
        upright.hsv(h/360.0, 1, 1)